<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>

<body>
    <script>
        let name = 'zhangsan'

        let age = 18
        let str = `hello ${name} ${age}`
        console.log(str);

    </script>
</body>

</html>